Page views
707
7d
▼ 2% vs previous 7d
LCP · p75
1.91 s
84% good · 707 samples
▼ 4% vs previous 7d
INP · p75
203 ms
75% good · 451 samples
▼ 7% vs previous 7d
CLS · p75
0.04
86% good · 707 samples
▲ 17% vs previous 7d
FCP · p75
1.47 s
83% good · 707 samples
▼ 10% vs previous 7d
TTFB · p75
799 ms
75% good · 707 samples
▼ 11% vs previous 7d
Happy page views
60%
11% unhappy · 707 rated
10% of these page views were in-app (soft) navigations. Those report INP and CLS, but browsers only measure LCP, FCP and TTFB on full page loads, so those three cover fewer page views.
What to fix first
Slow page loads cost you engagement
Comparing like with like (the same page type), page views whose main content took over 4 s got 53% less engaged time and 76% fewer clicks than ones that loaded in under 2.5 s. Based on 44 slow page views across 4 page types.
Compare fast and slow page views →
CLS got 17% worse than the previous 7d
p75 CLS is now 0.04. The Vitals tab shows when it changed and which pages it changed on.
CLS over time →
Tablet visitors get a much slower INP
p75 INP is 260 ms on tablet against 152 ms on desktop. Tablet is 12% of your page views.
Try: Test on a real mid-range phone or with CPU throttling: big images, heavy JavaScript and third-party scripts cost far more there.
INP by device →
Taps and clicks on this element respond slowly
#onetrust-accept-btn-handler
p75 INP is 205 ms over 120 page views, mostly on /. Most of the time goes on running the event handler.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
This element makes the page jump as it loads
div.ad-slot
p75 CLS is 0.13 on the 75 page views where it shifted, mostly on /search/.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
This element makes the page jump as it loads
#onetrust-banner-sdk
p75 CLS is 0.12 on the 70 page views where it shifted, mostly on /search/.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
4 more findings
This element makes the page jump as it loads
header.site-header
p75 CLS is 0.16 on the 71 page views where it shifted, mostly on /. 1 more element that shifts is in the Vitals tab.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
Taps and clicks on this element respond slowly
button.menu-toggle
p75 INP is 223 ms over 63 page views, mostly on /search/. Most of the time goes on running the event handler.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
Taps and clicks on this element respond slowly
nav.toc > a.toc-link
p75 INP is 253 ms over 58 page views, mostly on /articles/2/. Most of the time goes on running the event handler.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
/p/* pages are slow to show their main content
p75 LCP is 2.52 s over 63 full page loads; 11% took over 4 s. Most of the time goes on the image starting to load late.
Try: The browser finds the LCP image late: don't lazy-load it, give it fetchpriority="high", and make it discoverable in the HTML (or preload it).
LCP by page and element →
Trend
By device
| Device | Page views | p75 LCP | p75 INP | p75 CLS |
|---|---|---|---|---|
| Mobile | 345 | 2.29 s | 253 ms | 0.03 |
| Desktop | 274 | 1.48 s | 152 ms | 0.04 |
| Tablet | 88 | 1.98 s | 260 ms | 0.06 |
Does speed cost engagement?
Page views grouped by their own LCP. If slower pages get fewer clicks and less reading, that's the cost of slowness.
| LCP | Page views | Clicks per view | Engaged time | Avg scroll |
|---|---|---|---|---|
| Good | 592 | 1.77 | 34.9 s | 59% |
| Needs improvement | 70 | 0.77 | 21.9 s | 63% |
| Poor | 45 | 0.44 | 16.7 s | 38% |
Biggest changes vs previous 7d
| Measure | Previous | Now | Change |
|---|---|---|---|
| p75 LCP · Render delay | 531 ms | 413 ms | ▼ 22% |
| p75 TTFB · Server wait | 656 ms | 579 ms | ▼ 12% |
| p75 TTFB | 899 ms | 799 ms | ▼ 11% |
| p75 FCP | 1.63 s | 1.47 s | ▼ 10% |
| p75 LCP · Load delay | 593 ms | 650 ms | ▲ 10% |
| p75 LCP · Load time | 656 ms | 706 ms | ▲ 8% |
| p75 INP | 219 ms | 203 ms | ▼ 7% |
| p75 LCP | 2.00 s | 1.91 s | ▼ 4% |
| Avg scroll depth | 56% | 58% | ▲ 3% |
| Avg engaged time | 31.6 s | 32.5 s | ▲ 3% |